Below, I’ve rounded up the standout picks from Simba’s Cyber Monday 2025 sale – from hybrid mattresses to cooling mattress toppers. Why we love it: One of the most sought-after Cyber Monday mattress deals each year is The Simba Hybrid Original Mattress — a long-standing Glamour editor favourite. Why we love it: This year, one of Simba’s most premium mattresses, the Hybrid Luxe, has had a major price cut for Cyber Monday, with £360 off.