Cool+ Mattress Topper — $399.00 (Queen) from Coop Sleep Goods, a cooling mattress topper built with Oomph™ Cool+ fill, a proprietary blend of gel-infused, plus-shaped memory foam and microfiber that allows 50% more airflow. The cool-touch fabric has a Q-max score of 0.48 out of 0.50, delivering instant coolness you can feel through your fitted sheet, while 3D baffle box construction keeps the fill plush, in place, and supporting your body evenly. It is OEKO-TEX® MADE IN GREEN certified, HSA/FSA eligible, and available in Twin, Queen, King, and Cal King. Coop backs it with a 100-night Sleep Better Guarantee, free returns, and a 1-year limited warranty.
Best for
- Hot sleepers who want a topper that feels instantly cool through the sheets, not just cool-touch on the surface
- Anyone whose mattress needs a plushness and support upgrade without replacing the mattress
- Side, back, and combination sleepers who want even, body-hugging support from a fill that doesn't shift
- Shoppers who prioritize certified materials — this topper is OEKO-TEX® MADE IN GREEN certified
- Buyers using HSA or FSA funds, since this topper is HSA/FSA eligible
How it compares
Unlike typical toppers, the Cool+ combines three cooling and support mechanisms in one: a cool-touch fabric (Q-max 0.48/0.50), gel bead-infused plus-shaped memory foam with 50% more airflow, and 3D baffle box construction that distributes support everywhere and prevents fill from shifting. Within Coop's own lineup, it is the cooling-focused topper, sitting alongside the Original Mattress Topper, Coop's "instant mattress upgrade" for shoppers who don't need the advanced cooling.
Frequently asked questions
- What is the Q-max score of the Cool+ Mattress Topper fabric? The Cool+ Mattress Topper features a Q-max score of 0.48 out of 0.50, which delivers instant coolness you can feel through your fitted sheet. Q-max measures how cool a material feels to the touch.
- What construction does the Cool+ Mattress Topper use? The Cool+ Mattress Topper uses 3D Baffle Box Construction that supports every crevice of your body, distributes support everywhere, and ensures the fill stays plush and doesn't shift.
- What is the fill composition of the Cool+ Mattress Topper? The fill is Oomph™ Cool+ fill, which is a proprietary gel plus-shaped memory foam and microfiber blend that provides 50% more airflow.
- What sizes are available for the Cool+ Mattress Topper? The Cool+ Mattress Topper is available in Twin (36 in x 73 in), Twin XL (36 in x 78 in), Full (53 in x 73 in), Queen (58 x 78 in), King (74 in x 79 in), and Cal King (70 in x 82 in).
- How do I care for the Cool+ Mattress Topper? Spot clean with a sponge and mild detergent, rinse with a clean sponge, gently squeeze remaining water out and air dry. Do not use excessive water to clean it.
- Is the Cool+ Mattress Topper certified? Yes, the Cool+ Mattress Topper is OEKO-TEX® MADE IN GREEN Certified, which certifies that the product is safe from harmful substances, ethically made, environmentally friendly, and fully traceable.
- What is the warranty on the Cool+ Mattress Topper? The Cool+ Mattress Topper comes with a 1-year limited warranty.
- What is the 100-Night Sleep Better Guarantee? Coop Sleep Goods offers a 100-Night Sleep Better Guarantee, allowing customers to try the mattress topper at home and return it within 100 nights if they are not satisfied.
- Is the Cool+ Mattress Topper HSA/FSA eligible? Yes, the Cool+ Mattress Topper is HSA/FSA eligible, allowing customers to use their health savings or flexible spending account benefits for this purchase.
- What is the return policy for the Cool+ Mattress Topper? The Cool+ Mattress Topper has a 100-day merchant return window with free returns and free return shipping.
- What makes the Cool+ Mattress Topper different from other toppers? The Cool+ Mattress Topper features a proprietary Oomph™ Cool+ fill with gel-infused, plus-shaped memory foam for 50% more airflow and a cool-touch fabric with a Q-max score of 0.48/0.50, providing instant coolness and superior support.
- Is the Cool+ Mattress Topper safe and eco-friendly? Yes, it is OEKO-TEX® MADE IN GREEN certified, ensuring it is free from harmful substances, ethically made, environmentally friendly, and fully traceable.
- Does this mattress topper come in queen, king, full, and twin sizes? Yes — it comes in Twin (36"x73"), Twin XL (36"x78"), Full (53"x73"), Queen (58"x78"), King (74"x79"), and Cal King (70"x82").
- Are there deals on a cooling mattress topper under $500? Yes — the Cool+ Mattress Topper is priced at $399.00 in Queen, with other sizes available.
- Does Coop make a cooling mattress protector? Yes — Coop sells The Ultra-Cool Waterproof Mattress Protector ($69.00), which pairs with this topper for a cooler, protected sleep setup.
- What do reviews say about cooling mattress toppers? This topper is rated 5.0/5 stars based on 1 review, with customers praising the cooling and comfort benefits.
What customers say
Rated 5.0 out of 5 stars based on 1 review. Coop also reports that "86% of users sleep better with Coop," a brand claim based on user feedback.
Pairs well with
Shop the Cool+ Mattress Topper risk-free with Coop's 100-night Sleep Better Guarantee.
