There are also cooling features—this mattress has phase change material, or PCM, built into it to absorb body heat, and copper-infused memory foam that can wick that body heat away. With it being such a dense mattress, these are great features to make sure you aren't overheating from your mattress while you sleep. I was testing it during California wintertime with flannel sheets, and was happy to find that the thicker mattress and flannel didn't have me overheating, thanks to Bear's cooling features. All in all, it's a fantastic mattress for support and cooling, and even the firmest setting is one side sleepers can sleep on and wake up pain-free.
（一）核设施等特殊性质的建设项目；
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Jannik Sinner claimed his first title of the year with victory over Daniil Medvedev in Indian Wells, while Aryna Sabalenka snapped her losing streak against Elena Rybakina in a thrilling women’s final.