a guy constantly bailed on me

I have been talking to a guy for about a month now. Everything's going super great! We text constantly, we go out, we go on dates. All my friends love him! I can really see a future with this person. Nevertheless he even talk about our future together so it seem that's we're pretty serious. His only one flaw is that he constantly bailed on the plan. Probably a couple times per week or he wouldn't take the plan very seriously. Example last Saturday he asked me to come over at noon but when I got there he was still asleep. I had to wait out side for 45 mins to wake him up. Yesterday we were suppose to hang out then turned out he has to go into work at the last min and today we're going to take a trip to snowboarding then he told me he has a diarrhea. I don't know if this guy just keep bailing on me last minute or the excuses are actually legit. What do you guys think?