The Best Spring Sleep Number Deals to Shop This May

Sleep Number c2 mattress on a light grey bed with fluted headboard, against a pale blue wall. The nightstands, chair, cabinet, and accessories are all the same shade of blue. — (Image credit: Sleep Number)

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If you're looking to invest in a new mattress this May, Sleep Number's Memorial Day sale is already live, offering an early opportunity to save big on select models.

Sleep Number's selection is one of the very best for warmer weather, with fully adjustable, temperature-balancing solutions – and as the resident Sleep Editor here at Homes & Gardens, I waste no time in checking out the newest deals as they drop on the site, every month.

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Mattress discounts: Save 30 to 40% on select last chance mattresses, with the Sleep Number ClimateCool model now reduced by $750 in the Queen-size option.
Pillow discounts: Buy one, get one 50% off, and mix and match across all pillows.
Sheet discounts: Shop savings of up to 75% off, and buy one, get one 50% off, and mix and match any sheet sets.
Blankets and coverlets discounts: Up to 75% off blankets, and save up to 30% off on bedding, pillows, and accessories when you buy three or more.
Mattress pads and toppers: Save up to 20% on almost all mattress pads and toppers, and 30% on the Sleep Number Total Encasement Mattress Topper. The Sleep Number DualTemp® Layer is also on a buy one, get one 50% off deal.
Down comforter discounts: Save 75% on the Classic Down Alternative Comforter Set while supplies last.

Shop Our Edit of the Sleep Number Sale

When Is the Best Time to Get a Sleep Number Deal?

The best time to get the biggest reductions on anything from Sleep Number will inevitably be Black Friday (the last Friday in November) and Cyber Monday (the first Monday in December), this year.

If you can't wait, you can expect to see reductions for Federal Holidays, such as Labor Day on the 7th of September this year, which, based on previous patterns, are likely to last throughout the entirety of the month. If you miss both of these sale periods, you can also pick up a great deal in the post-Christmas sales in January 2027.

Shopping at these times, as well as during seasonal flash sales that happen for limited times only, will ensure you never have to pay full price, so they're definitely worth taking note of and waiting for.

FAQs

Is Sleep Number Bedding Worth It?

I think so. I'd say that Sleep Number is one of the best places to buy bedding for hot sleepers. If you suffer from hot flashes or night sweats, or you live in a warm climate all year round, then you need more than breathability: You need active cooling and thermoregulatory technology.

So far, my team of expert testers and I are impressed by the practical benefits of Sleep Number bedding. Testing through heat waves and summer nights, we've found that Sleep Number sheets and pillows, in particular, do a great job at wicking away moisture and dissipating heat. The prices are competitive and notably less expensive than you'd expect to spend on luxury linen or cooling silk.

How Does Sleep Number Bedding Work?

Sleep Number's True Temp collection incorporates something called 37.5 Technology, which is a brand name for a patented combination of natural volcanic minerals, and is supposed to regulate temperature and relieve humidity.

The micropores on the minerals are able to capture infrared radiation, which is a kind of thermal energy our bodies emit. 37.5 Technology helps to absorb excess thermal energy and speed up the evaporation of moisture, keeping you just the right side of cool and dry.

Which Sleep Number Bed is Best?

The best Sleep Number bed is entirely down to your personal sleep style. All of their beds benefit from adjustable firmness (soft, medium or firm) on both sides, depending on whether you sleep alone or with a partner. The mattresses come in six different sizes and temperature-controlling materials, whether you run hot, cold, or somewhere in between. And the bases are adjustable, too, to ensure maximum comfort for sleep, reading, or watching TV in bed.

If you're not sure which to go for, there's a helpful quiz on the Sleep Number website to help you figure out the best one for you.

If you're particularly shopping for cooling bedding, take a look at the best Amazon cooling sheets, and our round-up of the best cooling mattress toppers and pads.

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Ottilie joined Homes & Gardens in 2024 as the News Writer on Solved, after finishing a Master's in Magazine Journalism at City, University of London. Now, as the Sleep Editor, she spends her days producing content on all things sleep – from mattresses and sheets to protectors and pillows, all of which she tests in her own home. She also has particular expertise in home fragrance, covering everything from candles to reed diffusers, and frequently attends showrooms, including Vispring and Frette, and events hosted by the likes of Diptyque, Jo Malone, and Malin+Goetz.

Previously, she has written for Livingetc and Motorsport Magazine, and also has a Master's degree in English Literature and History of Art from the University of Edinburgh.

With contributions from

Zara StaceyContent Editor
Emilia HitchingSleep Editor
Katrina Harper-LewisHead of Living