L.A.
At 7 months, he may be getting ready to drop one of those naps.. Just be ready.
It sounds like you are doing very well. But it also sounds like he is also ready for some extra exercise and movement. .
Make sure he is getting some good tummy time.. and that you allow him to pull up to a sitting position with him grasping your fingers. Is he trying to get up onto his knees? More playtime, encouraging his moving around. Rolling.. Placing things just outside of his reach.
Does he sleep well on his tummy? I noticed if I placed our daughter in her crib on her tummy, with her head up against one of the corners of the bumpers ( I actually rolled up a towel and had it placed there)
She would kind of scoot into it and it seemed to calm her.
I played quiet music like Vivaldi, "Four Seasons"..The Wyndam Hill collections are great. I also made sure there was a fan lightly blowing. Our daughter tends to be warm, so the coolness was great for her,
I also made sure she had a really good burp.. sometimes rubbing her back or tummy with a bit of a pressure in upward strokes.
Sometimes, I would pat her back as she laid there. but only for a few minutes. No talking or conversations. I used touch instead. My voice seemed to perk her up..
When we used the white noise , it was just enough to cover most of the outdoors noises. In the late afternoon, lots of car doors opening and slamming closed and car alarms being set. I wanted her to be used to conversations, the phones ringing,. etc.
But voices always caught her attention.