A.C.
Hi M.. I have 2 girls that I put on a schedule and I'm going to have a little different view than the others that responded. I would say you're not lucky. Your baby sleeps so well because you've trained her so well with your feed/WAKE/sleep cycle. You ARE doing great! I think at 8 weeks 1 hour and 15 minutes is a good amount of wake time (sleeping 1 hour 45 minutes). As she reaches 10-12 weeks 1 1/2 hour wake and 1 1/2 sleep should be perfect. Then you usually move to a 3 1/2 hour feeding schedule and it becomes 1 hour 45 min wake and feed. Great job trying to keep her awake and then take a good nap.
Ideas for wake time...bouncy seat in front of a Baby Einstein. She may not watch the whole thing, but all the colors and movement will stimulate her and keep her awake. Massages and tickle time are always great on the changing table. Carry her in the Bjorn facing out while doing chores around the house. The "gym" is great...I don't know what you call it. It's a mat with bars over it with toys hanging down. A walk is great (Grapevine Mills is perfect this time of year). Tummy time will wake her up. ;) The swing may be too comfortable at this age for WAKE time. My advise would be to keep her out of her comfortable bed until nap time. Even if she falls asleep, put her on the floor in the living room with the lights on and voices at full volume. Then at nap time put her in her bed. That will train her to stay awake.
Keep up the good work!