Is it a good idea to send your SO a message of how amazing in bed he was last night?

So last night, my SO and I had amazing sex. I'm talking about hours of never ending pleasure. Needless to say I came a lot..😅 All day long I have been getting flashbacks of it, and I decided to send him this really long message describing how I felt about everything. Basically saying how amazing he is in bed and all that jazz, just wondering if this was a good idea or not.