Casper Cooling Select Memory Foam Mattress Review 2026: Is This Worth Buying?

Hot sleepers know the struggle of waking up sweaty at 3 a.m. The Casper Cooling Select Memory Foam Mattress promises a cooler night and a kinder price tag.

This Costco exclusive bed-in-a-box has gained steady attention since its launch, and many shoppers want to know if it lives up to the hype in 2026.

This review breaks down every detail you need before buying. We tested the feel, cooling power, support, and value over several weeks. By the end, you will know if this mattress fits your sleep style and budget.

Key Takeaways

• Budget friendly cooling foam mattress: The Cooling Select sells around $549 to $799 depending on size, which makes it one of the most affordable Casper options in 2026.
• Four layer foam construction: A breathable top layer, pressure relieving memory foam, Zoned Support transition foam, and a durable base form the full 12 inch profile.
• Medium feel that suits most sleepers: The mattress sits near a 6 out of 10 on the firmness scale, which works well for back sleepers and side sleepers under 230 pounds.
• Good motion isolation and quiet sleep: All foam layers absorb movement well, so couples and pet parents enjoy minimal disturbance during the night.
• Average edge support and bounce: The mattress is a foam build, so you will notice softer edges and slow response when changing positions.
• Costco exclusive with a 10 year warranty: You buy it through Costco with a generous return window, which adds peace of mind for new buyers.

What Is the Casper Cooling Select Memory Foam Mattress?

Last update on 2026-10-16 / Affiliate links / Images from Amazon Product Advertising API

The Casper Cooling Select is a 12 inch all foam mattress sold mainly through Costco. Casper designed it as a budget friendly cousin of their flagship Snow and Wave models. It uses the same brand DNA but trims back premium features to hit a lower price.

This mattress targets hot sleepers who want gentle pressure relief without a sky high cost. The cover uses a cooling knit fabric that feels soft and breathable to the touch. Inside, the foams are infused and shaped to keep airflow steady and body heat low.

The build includes four foam layers stacked in a smart order. The top layer breathes well and absorbs surface heat. The second layer holds the classic memory foam hug that Casper fans love. The third layer offers Zoned Support, which means firmer foam under your hips and softer foam under your shoulders. The base layer locks in long term durability.

Casper sells the mattress in Full, Queen, King, and California King sizes. It ships compressed in a box, which makes setup simple even for solo buyers. Most owners report a full expansion within 24 to 48 hours after unboxing.

Construction and Materials Breakdown

The Casper Cooling Select uses a careful four layer recipe inside its 12 inch profile. Each layer plays a clear role in comfort, support, and temperature control. This section explains what sits between you and the floor.

The top comfort layer is a breathable polyfoam built for airflow. It feels soft on contact and lets body heat escape upward through the cover. This layer also adds a slight bounce, which makes movement on the bed easier than pure memory foam.

The second layer is gel infused memory foam. This is the part that cradles your hips, shoulders, and spine. It melts under your pressure points and reduces aches in joints. The gel infusion pulls heat away so you do not sink into a warm pocket.

Below that sits the Zoned Support transition foam. Casper builds this layer with firmer foam in the middle third and softer foam at the ends. This design lifts the lower back and lets the shoulders settle deeper for proper spinal alignment.

The bottom layer is a 7.5 inch high density polyfoam base. It carries the weight of the upper layers and the sleeper. The cover wrapping all four layers uses a cooling knit blend that feels cool to the touch even in summer rooms.

How Cool Does It Really Sleep?

Cooling is the headline feature, so we tested it carefully across hot and mild nights. The Casper Cooling Select performs better than basic foam mattresses but does not match premium cooling beds like the Casper Snow.

The cover does most of the cooling work. It pulls surface heat away from your skin within seconds of lying down. Hot sleepers will notice the cool to the touch feel right when they get into bed. This makes falling asleep faster on warm nights.

The gel infused memory foam handles mid layer heat. It moves warmth away from your body and into the airflow channels. We did not feel the trapped heat pocket that often forms in classic memory foam beds after an hour.

That said, the mattress is still mostly foam. People who sleep extremely hot or live in non air conditioned rooms may want a hybrid model with coils. Coils boost airflow far more than foam can. For most sleepers in normal home conditions, the Cooling Select keeps the night comfortable and sweat free.

Firmness and Feel Explained

Casper rates the Cooling Select as a medium feel. On the standard firmness scale, it lands close to a 6 out of 10. This puts it in the sweet spot where most sleepers feel both soft cushion and steady support.

When you first sit on the bed, you feel a gentle sink. The top foam reacts within a second or two. Then the memory foam layer wraps around your body for that classic hug feeling. The Zoned Support foam stops you from sinking too deep.

Side sleepers under 230 pounds will enjoy the pressure relief at the shoulders and hips. The mattress lets these joints settle without pinching. Back sleepers get firm lumbar support thanks to the zoned middle. Stomach sleepers under 200 pounds may also find it acceptable, though heavier stomach sleepers may want a firmer option.

Couples with different sleep styles often find this firmness fair for both partners. It is not too plush and not too firm. New owners usually need about one to two weeks to fully adjust to the feel, which is normal for any foam mattress.

Top 3 Alternatives for Casper Cooling Select Memory Foam Mattress

Last update on 2026-10-16 / Affiliate links / Images from Amazon Product Advertising API

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Motion Isolation and Couples Comfort

Couples often choose foam mattresses for one big reason. Foam absorbs movement well, which means one partner moving does not disturb the other. The Casper Cooling Select delivers on this promise.

We tested motion transfer with the classic glass of water trick. The water barely rippled when one person shifted from side to side. A partner climbing in late at night should not wake a sleeping spouse on this bed.

Pet owners will also appreciate the quiet foam build. Foam mattresses make no creak or squeak, unlike spring beds. A dog or cat hopping on or off the bed does not cause vibrations to travel across the surface.

The trade off is that foam slows down a bit during intimate moments. The mattress responds slowly to movement compared to hybrid beds with coils. Most couples adjust to this quickly and find the cooling and motion isolation worth it.

Edge Support and Bed Size Feel

Edge support is one of the weaker points of the Casper Cooling Select. Because the entire mattress is foam, the edges compress more than they would on a hybrid bed. People who sit on the edge to put on shoes will feel a noticeable dip.

When you lie near the edge while sleeping, you may also feel like you could roll off. This is not a deal breaker for most people, but it matters for couples sharing a smaller bed like a Full or Queen. You lose a few inches of usable sleeping space on each side.

That said, the firm base layer prevents the complete edge collapse found in cheap foam beds. The mattress holds its shape over time, and the base foam keeps the structure stable for years.

If edge support is critical for you, consider the hybrid version of the Casper Cooling Select. Or look at a coil based alternative. For most solo sleepers and many couples, the edge support is acceptable for the price point.

Who Should Buy the Casper Cooling Select?

The Casper Cooling Select fits a clear set of sleepers very well. Knowing if you match this group helps you decide quickly.

Side sleepers under 230 pounds will love the pressure relief. The memory foam layer cushions hips and shoulders without poking back. Back sleepers will also enjoy the Zoned Support, which lifts the lower back during the night.

Hot sleepers on a budget are the main target audience. The cooling cover and gel foam pull heat away well enough for most warm bedrooms. You do not need to spend $1,500 or more to sleep cool when this mattress costs under $800.

Costco members looking for a trusted brand get great value here. Casper has a long history in the bed in a box space, and Costco backs purchases with a generous return policy. New homeowners and guest room buyers love this combo.

This bed is not the best pick for heavy stomach sleepers, people who want strong edge support, or those who love the bouncy feel of innerspring beds. For those needs, a hybrid model is a smarter pick.

Who Should Skip This Mattress?

Not everyone matches the sweet spot for this bed. Some sleepers will be happier with a different style.

Heavy sleepers over 250 pounds may sink too deep into the foam. The Zoned Support helps, but the bed lacks the firm coil core that bigger bodies often need. A latex or hybrid mattress would serve them better.

Strict stomach sleepers also need to think twice. Stomach sleeping puts pressure on the lower back, and the medium feel of the Casper Cooling Select may let the hips dip too low. A firmer mattress around a 7 or 8 on the firmness scale is a better fit.

People who want a truly cold sleeping surface all night long may need a step up to the Casper Snow or another premium cooling bed. The Cooling Select is cool enough for most rooms but cannot match phase change material beds in extreme heat.

Lastly, anyone who hates the slow sink of memory foam should look at a hybrid or latex option. The Cooling Select still has that signature foam hug, even if it bounces back faster than pure memory foam beds.

Trial Period, Warranty, and Delivery

Buying a mattress online can feel risky, but the Casper Cooling Select comes with strong shopper protections. Costco backs the purchase with one of the friendliest return policies in retail.

The mattress includes a 10 year limited warranty from Casper. This covers defects in materials and workmanship. Sagging deeper than one inch counts as a covered defect, which gives you long term peace of mind.

Costco offers its famous satisfaction guarantee on top of that. If you do not love the mattress, you can return it within the standard Costco return window. This is more generous than the typical 100 night trial offered by direct mattress brands.

Delivery is free for Costco members. The mattress ships compressed in a box, so it arrives at your door without scheduling hassle. Most buyers can carry it to the bedroom alone, though a second person helps. Setup takes about 10 minutes, and the bed fully expands within 24 to 48 hours.

How It Compares to Other Casper Mattresses

The Casper lineup has grown wide in 2026, so it helps to see where the Cooling Select fits in. This section places it next to the other Casper options.

The Casper One is the entry direct to consumer model. It costs slightly less than the Cooling Select in some sizes and feels firmer. It lacks the deep cooling cover of the Cooling Select, so hot sleepers should choose the Costco version.

The Casper Original sits in the middle of the lineup. It has a stronger zoned design and a more refined feel. It costs $300 to $500 more than the Cooling Select, which is a big jump for a small upgrade.

The Casper Snow is the premium cooling king. It uses phase change material and HeatDelete bands to fight heat for 12 plus hours. It also costs three times more than the Cooling Select. For most sleepers, the cheaper option is enough.

The Casper Cooling Select Hybrid is the closest cousin. It swaps the bottom foam for pocket coils. The hybrid offers better edge support and airflow but costs around $200 more. Choose the hybrid if cooling and edge support matter most.

Price and Value in 2026

Value is where the Casper Cooling Select shines brightest. Casper built its name with mattresses that cost $1,000 or more, and the Cooling Select brings that brand quality to a much lower price.

A Queen size sells around $549 to $649 at Costco. The King size lands near $799. These prices are roughly 40 to 50 percent lower than the Casper Original Queen. You get most of the same comfort features for far less money.

When you compare it to other brand name cooling foam beds, the price looks even better. The Tempur-Pedic ProAdapt costs four times more. The Purple Mattress costs about twice as much. Few major brands offer a cooling memory foam bed under $700 with this level of build quality.

For first time mattress buyers, college students, and Costco members furnishing a guest room, the value is hard to beat. You get a trusted brand, cooling tech, and a strong warranty without overspending.

Real Customer Feedback and Common Complaints

We looked at hundreds of customer reviews to gather a fair picture. Most owners are happy with the Casper Cooling Select, but a few complaints show up often enough to mention.

Positive reviews focus on three things. Buyers love the cool to the touch cover, the medium feel that works for many sleepers, and the price. Many users say it sleeps cooler than their previous foam mattress and helps them stay asleep through the night.

The most common complaint is off gassing during the first few days. New foam mattresses release a chemical smell after unboxing. The smell fades within three to five days, but sensitive sleepers may want to set up the bed in a ventilated room.

Some heavier sleepers report that the bed feels softer than expected after a few months. This is common in foam mattresses and not unique to Casper. The 10 year warranty covers any sagging beyond one inch, which protects long term buyers.

A small group of reviewers mention weak edge support, as covered earlier. Overall, the positive reviews far outweigh the negative ones, and customer satisfaction stays high across most Costco listings.

Final Verdict on the Casper Cooling Select

The Casper Cooling Select Memory Foam Mattress earns a strong recommendation for the right shopper. It hits the sweet spot of price, brand quality, and cooling power that few competitors match in 2026.

You get a real Casper mattress with the classic medium feel, Zoned Support, and cooling cover for hundreds less than the brand’s direct lineup. The Costco return policy adds extra confidence for new buyers. The 10 year warranty protects the long term investment.

The mattress is not perfect. Edge support is weak, heavy stomach sleepers may want a firmer bed, and the cooling will not beat premium phase change material mattresses. These limits are fair trade offs for the price.

If you are a side or back sleeper under 230 pounds, sleep warm in a normal bedroom, and want a budget friendly bed from a trusted brand, the Casper Cooling Select is one of the smartest picks of the year. Pair it with a quality pillow and breathable sheets to get the most out of every night.

Frequently Asked Questions

Is the Casper Cooling Select only available at Costco?

Yes, the Casper Cooling Select is mostly a Costco exclusive mattress. You can find it both in warehouse stores and on the Costco website. A version of the Casper Select also appears on Amazon for shoppers without a Costco membership.

How long does the Casper Cooling Select take to expand?

The mattress reaches its full size within 24 to 48 hours after unboxing. You can sleep on it the same night, but the full feel develops over the first two nights. Place it in a ventilated room to help the off gassing fade faster.

Does the Casper Cooling Select work with an adjustable base?

Yes, the all foam build flexes well on adjustable bases. You can pair it with most standard adjustable bed frames without voiding the warranty. Always check the frame’s weight limits before setup.

What is the firmness of the Casper Cooling Select?

The mattress has a medium feel, rated around a 6 out of 10 on the firmness scale. This suits most side and back sleepers under 230 pounds. Stomach sleepers and heavier sleepers may want a firmer mattress.

How long does the Casper Cooling Select last?

With normal use, the mattress should last 7 to 10 years. The 10 year warranty covers defects and sagging deeper than one inch. Rotating the mattress every six months helps extend its useful life.

Is the Casper Cooling Select good for hot sleepers?

Yes, the cooling knit cover and gel infused memory foam help most hot sleepers stay comfortable. People in very warm rooms or with severe night sweats may prefer a hybrid mattress for stronger airflow.

Can I return the Casper Cooling Select if I do not like it?

Yes, Costco’s generous return policy applies to this mattress. You can return it within the standard Costco mattress return window. Always keep your receipt and check current return rules at your local warehouse.