Good chill mat for Dell XPS 13 9350 to use it on lap. Gets hot on my legs!

I recently bought a Dell XPS 13 9350 because i wanted a small form laptop to use on my lap while sitting in my couch. It sits perfect however gets too warm at the bottom so on my legs. I'm thinking about returning it. Really disappointed. I really wish Dell had placed airholes on the side or also used carbon fiber at the bottom to keep it cool.

Are there any good chill mats for this device too hold it stable on my lap that aren't too bulky. I found the vid below about the Targus 15" chill mat but won't my 13" slide off while typing? Any better solutions? They mats all seem to give an angle but i don't need an angle. The angle i have it on my lap right now is just fine. I just need a cool surface that holds it in place when typing.

Thanks for all good feedback.