I recently tested the Soak & Sleep New Zealand wool mattress topper for three months, and I was impressed by the results. As someone who often feels cold when they first get into bed and then wakes up a sweaty mess, I was eager to see if this topper could help. I already use wool bedding, so I was excited to try this new addition to my sleep setup. The topper is slim at 2.5cm deep, but it's well-made and comes with a 5-year guarantee. It's machine washable, though professional washing and drying are recommended. The elastic straps are a standout feature, keeping the topper firmly in place without budging. I was warned about the 'sheep' smell, but I noted no particular smell, which was convenient. The topper's thinness made it appear more like a mattress protector than a traditional topper, but it added a soft, springy top layer to my mattress. It didn't offer the same level of cushioning as thicker toppers, but it did provide just enough for my knees, hips, and lower back, easing any aches and pains. The real star of this topper is its temperature-regulating properties. Wool is naturally hypoallergenic and has natural temperature-regulating properties, absorbing and releasing humidity to keep you at the perfect temperature. Since adding this topper to my bed, I haven't woken up from overheating, which was a significant improvement. The care instructions are straightforward, but the requirement for professional washing and drying might be a drawback for some. The Soak & Sleep wool mattress topper is an affordable cooling option, costing £130 for a double size, compared to other luxury toppers like the Simba Hybrid Mattress Topper, which costs £314. However, its thickness and lack of motion isolation make it more of a turbocharged mattress protector. Overall, I enjoyed sleeping on this topper, but it's not ideal for adding extra support or for those seeking a thicker topper. It's a great choice for those who overheat at night and want a thin layer of extra cushioning, provided they have access to a tumble dryer or professional cleaner.