Is the CoolNest worth it?

At its price it is one of the cheaper hybrid mattresses with cooling gel foam and zoned support. It suits budget buyers who want a spring-and-foam feel rather than an all-foam bed.

Does it really sleep cool?

The gel-infused foam pulls heat away at first, and the spring core allows some airflow. It runs cooler than plain memory foam, but it is not a true active-cooling mattress.

Will it work on an adjustable bed?

Yes. Sweetnight lists it as compatible with adjustable beds, and the foam-and-spring build flexes with the frame.

What sizes and thicknesses are there?

It comes in Twin, Full, Queen, King and California King, in 12-inch and 14-inch profiles. The 14-inch version adds more foam over the springs.

How long does it take to expand after unboxing?

Most mattresses of this type fully expand within 24 to 72 hours. Sleeping on it sooner is fine, but it may feel firmer until it settles.

When is the price lowest?

Mattress prices usually drop around major sales events like Memorial Day, Labor Day and Black Friday. Check the price history before buying outside those windows.

What do buyers say about the Sweetnight CoolNest Medium Cooling Gel Memory Foam Mattress?

Rated 4.4 out of 5 from 388 ratings.

Sweetnight CoolNest Medium Cooling Gel Memory Foam Mattress

4.4

Last price we saw

$449.99last seen Oct 29

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Our take on the Sweetnight CoolNest Medium Cooling Gel Memory Foam Mattress

The Sweetnight CoolNest is a 12- or 14-inch hybrid mattress that pairs cooling gel memory foam with an innerspring core and a five-zone support layer. It comes in Twin through California King and is built to work on adjustable beds. It is a budget-priced hybrid aimed at hot sleepers who want pressure relief without a premium price.