Boyfriend angry at me for sleeping long?

My boyfriend gets very angry at me when I get more sleep than normal. Like when I sleep in, he goes arsy with me and gets pissed off about it. Calls me lazy often... which btw I'm not? I have alot if trouble sleeping at night and also wake up alot during the night so my sleep does last until later than normla especially since I'm not working it's been a nice break. When I was working I was on 4 to 6 hours sleep a night. It's gone up to about 8 to 9 now.. which is such a break and so nice. Is he right to be so angry at me for it? Maybe hes jealous because he has to get up before me? I dont know...