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The Best Sleep Number Deals in March – Everything You Need to Know About Shopping the Biggest Reductions

Shop smart with Sleep Number, one of our favorite retailers for smart beds and thermoregulating bedding

A pale beige Sleep Number mattress on a bedframe with a fluted headboard. The bed is in a dark room with black walls, with a navy rug beneath it, and a glass vase to the right filled with white flowers. To the left is a built-in shelf with gold vase and picture frame.
(Image credit: Sleep Number)

March is officially here, with warmer weather well and truly on the way across the southern states in the US. Fortunately, Sleep Number's Last Chance sale continues, with significant reductions on temperature-balancing solutions ahead of the sunny spring and summer months.

As the resident Sleep Editor here at Homes & Gardens, I waste no time in checking out the newest deals as they drop – I'd always recommend saving where you can, as there's no doubt that shopping for the best mattresses can be expensive.

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Shop Our Edit of the Sleep Number Sale

Sleep Number i8 Mattress (Queen)
Save $1,599.60
Sleep Number i8 Mattress (Queen): was $3,999 now $2,399.40 at Sleep Number

This is the lowest ever price on Sleep Number's most popular combination of advanced temperature balancing and plush, pressure-relieving support with this i8 mattress. It's designed to respond to your movements and automatically adjust the firmness on each side.

Climate360® smart bed (Queen)
Save $1,024.90
Climate360® smart bed (Queen): was $10,249 now $9,224.10 at Sleep Number

This mattress actively cools or warms either side independently, with clever individualized temperature control. It's now reduced by over $1,000, and includes a smart adjustable base.

ClimateCool® smart bed (Queen)
Save $575
ClimateCool® smart bed (Queen): was $5,749 now $5,174 at Sleep Number

Save over $550 on this ClimateCool® smart bed, which includes a choice of any base, and cooling comfort you can control. The breathable sleep surface helps release excess heat for added cooling.

Sleep Number DualTemp® Layer (Half-Queen)
Save $220
Sleep Number DualTemp® Layer (Half-Queen): was $1,099.99 now $879.99 at Sleep Number

This DualTemp® Layer is now reduced by over $200, and can be added as an individual layer to any bed, to allow you to sleep up to 35% cooler or warmer. It uses air technology to enhance airflow performance and ultimate comfort, and allows you to choose from multiple temperature settings, from cool to warm, at the touch of a button.

p5 mattress (Queen)
Save $809.70
p5 mattress (Queen): was $2,699 now $1,889.30 at Sleep Number

Save over $800 on this p5 mattress, which offers soothing pressure relief where you need it most, with layers that feature two times more ceramic gel to effectively release heat.

iLE Limited Edition Premium Mattress (Queen)
Save $1,599.60
iLE Limited Edition Premium Mattress (Queen): was $3,999 now $2,399.40 at Sleep Number

Save over $1,500 on Sleep Number's Limited Edition iLE Mattress. Featuring pressure-relieving, gel-infused layers, the mattress's breathable sleep surface provides plush, long-lasting comfort, with the adjustable firmness on each side responding with ease to your movements.

c4 Premium Mattress (Queen)
Save $569.70
c4 Premium Mattress (Queen): was $1,899 now $1,329.30 at Sleep Number

Part of Sleep Number's Classic series, the c4 is highly supportive, providing comfortable pressure relief by contouring to your body and sleep style, and it's now reduced by over $500.

Classic Series Premium Mattress (Queen)
Save $569.70
Classic Series Premium Mattress (Queen): was $1,899 now $1,329.30 at Sleep Number

Save $569 on this Classic Series mattress, which is comfortably breathable, with adjustable firmness and impressive pressure relief. The gel-infused layer contours to the curves of your body for support in any sleep position.

Performance Series Premium Mattress (Queen)
Save $809.70
Performance Series Premium Mattress (Queen): was $2,699 now $1,889.30 at Sleep Number

Save over $800 on this premium mattress, which features added cooling, pressure relief, and support. It's ideal for hot sleepers and has responsive comfort layers to support your entire body.

PlushComfort™ Pillow
Save $24.99
PlushComfort™ Pillow: was $49.99 now $25 at Sleep Number

This pillow is available in a Classic, Curved, or Ultimate shape, as well as a Standard or King size. It's silky-soft, hypoallergenic, and designed to mimic the softness of premium down.

Framed Arch Upholstered Headboard (Queen)
Save $360
Framed Arch Upholstered Headboard (Queen): was $899.99 now $539.99 at Sleep Number

Sleek and sophisticated, this enduring bed frame can grow with a bedroom for years to come. Part of the Sleep Number Essential Collection, the headboard includes wooden legs, assembly hardware, and headboard brackets that are compatible with Sleep Number smart beds and bases.

Classic Down Alternative Comforter Set
Save $109.99
Classic Down Alternative Comforter Set: was $219.99 now $110 at Sleep Number

Save 50% on this Classic Down Alternative Comforter Set while supplies last, which is available in seven reduced colorways and patterns, and can conveniently be machine-washed on a gentle cycle in cold water.

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.

Ottilie Blackhall
Sleep Editor

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 hunting deals and 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.

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, where she developed a love for inspiring interiors and architecture.

With contributions from