Gave My 6 Month Old 1.2m Of Infant Tylenol At

Gave my 6 month old 1.2m of infant Tylenol at 7 pm and my husband gave him just under 1m at 8:30-9:00pm without realizing I had already gave him Tylenol. He also gave 1tsp of gripe water. It's now 11:50 and he seems okay just sleepy, should I take him to the hospital or just watch him? We didn't realize the mess up till shortly after 10 and I've been freaking out. Should I keep him awake? He did nurse fine and and also pooped and peed. He's 16lbs.