Once the mattress is unboxed and the vacuum seal has been cut, your mattress will expand within minutes. You can sleep on the mattress right away, but the manufacturer recommends waiting 24-48 hours to completely decompress.
How long will it take a Bear mattress to expand?
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About Derek Hales
Derek Hales is the Founder and Editor-in-Chief of NapLab. His insights and work has been featured on ABC's Tamron Hall Show, Freakonomics, CBS News, ESPN, Reader's Digest, Homes & Gardens, New York Post, CNET, & More. Derek has personally tested 440+ mattresses and began testing mattresses in 2014.
