CozyLux King Mattress Pad, 450GSM Quilted Cooling Cotton Top Mattress Topper, Extra Deep Pocket Fits 8-21 inches, Oeko-TEX Certified, Plush Soft & Breathable Bed Pad (78"x80", White)

https://a.co/d/03GrYP7I I ended up buying this one in king size, I can fold it half when I have my daybed in twin mode and still put a twin size fitted sheet over it so it ended up working out pretty well for me. And people have told me the bed is comfy. I have ikea mattresses