I currently have a nice Big Agnes bag for cold weather use (gets to 15F can be stretched). What I love about the bag is that my sleeping pad is attached in a sleeve under the bag. I am a heavy tosser and used to wake up constantly to look for my pad.
With the summer season starting I have been thinking about some kind of midweight sheet with a sleeve sown in the bottom. Has anyone seen a pattern for soemthing similar? Evenings where I will be sleeping will likely not get below 60 (mostly be into the 75 - 85 range).