You Can go no batt or use a layer of pre-washed flannel. I think the flannel helps the quilt to drape better.

I use a lightweight batting in my summer quilts. Adds a nice bit of body without too much weight or warmth. My favorite summer quilt; the one that lives on my bed all summer long; has a dream wool batting. It is fabulous to work with, lightweight but lofty, breaths, very comfortable all summer long.

I've done the flannel and it's works great.

I love Hobb's Heirloom washable wool. It is cool in the summer & warm in the winter. I used to think there was no way wool would be cooler than cotton, but I tried one while visiting with friends once and was totally hooked! It truly is the coolest option I can think of for summer batting.

Flannel is good as a very light weight batting, but be SURE to wash and fully dry it to get the best shrinkage before batting with it.

If you'd rather use a 'real' batting, Quilters Dream Cotton, Request loft, is their thinnest, lightest weight batting. It handquilts beautifully, too. (Sleeping with the window open in the winter in North Dakota -- Oh my goodness, I can't even imagine??!!)

I have one on my bed right now with no batting just a backing and quilted. It is warm enough that i keep pushing it off and on during the night.

i love the teeny tiny stitches i can get when there is flannel in the middle! LOL!

That's my go-to for a lightweight/summerweight quilt.

Michelle

I know a few people who sleep with the window cracked a couple inches. One lives in Montana and another and her family in Indiana. It's all about the fresh air. Not wide open but just an inch or two. I'm making note of all the batting suggestions. the quilts I have started working on again are all going north to Indiana and Michigan.