This Slumberdown Cool Summer Nights 4.5 Tog Summer Duvet is lightweight for cool comfort during warmer summer months. The soft touch cover and light and cosy hollowfibre filling make this duvet ideal to gently nestle around your body whilst keeping you feeling cool so you can enjoy a comfortable night’s sleep. Being a lightweight 4.5 tog duvet, it's great for warmer months or for if you prefer a cooler, less heavy duvet.