Some weighted blankets have “cooling technology”. My weighted blanket has tiny glass beads inside and I always stay cooled down. Mine also comes with a duvet cover for the winter months and It’s amazingly comfortable. I highly recommend investing in one. I got mine off amazon for ~$90. I use the brand Quility. There’s a $30 off coupon on amazon right now for it!!
Edit: Here’s the link: https://www.amazon.com/dp/B07C1PBDLX/ref=cm_sw_r_cp_api_i_KyKsFb34332NY