Sorry this took a while, but now I can start the review.
Let's start at the cold open, which has Grover. One of the better things about this "Core 6" character scheme is that we get more Grover. One of the worst things is that the more he appears, the more flanderized he gets. Oh well, I'll save that for later. Anyway, Grover is trying to put on his pajamas, only to put on a firefighter's uniform and scuba gear instead. This isn't too bad, so I'll give it a pass.
Now onto the meat of this (and every) episode, the street story! It's... It's... it's boring. I completely forgot a lot of things from it (and I only watched it a little while ago), so I had to look them up on Muppet Wiki. Apparently the whole plot of this episode is Abby is sleeping over at Elmo's, but uh-oh, Abby does things different from the norm. Bring on the hijinks. I guess the flying toothbrush and tug-of-war with a giant make sense because she's a magical being, but why does she need a marching band for a lullaby? I'll admit, I did like Nina's lullaby, though.
Now onto the letter of the day. In the HBO era, each episode has a theme, and the first letter of that theme is the letter of the day. For example, this episode's theme is bedtime, so the letter of the day is B. Now in the HBO era, there are 2 types of letter segments. Letter segments and "letter" segments. The difference is that one actually teaches the letter of the day, and the other is just a montage disguised as a segment to teach the letter of the day. This episode has a letter segment. Enjoy it while you can folks, because after this season (and a few exceptions next season), the letter segments will be gone and replaced with more "letter" segments. Anyway, the segment has Tracee Ellis Ross trying to get ready for bed, only to find many B words in her bed, including Big Bird, which I liked. The ending line was also kinda funny.
I know that the Number of the Day comes before Smart Cookies in this episode, but with one exception, no other episode in this season or any season is like that. So I'll review SC first. Like with letter segments, there are 2 types of Smart Cookies segments. One where Miss Fortune gives 3 clues that must be put together to stop the Crumb, and one where she only gives 1 clue and Figby uses his tablet to get solutions. This one is the former, though unlike with letter segments these are pretty evenly spread. Anyway, this segment has the Crumb hiding a Ginger Snap (a cookie bomb that snaps until it explodes into a million crumbs) in the King's bedroom. In both types of Smart Cookies segments, Cookie jumps to conclusions after the clue is given and brings in something that fits the clue yet obviously won't solve the problem. Eventually, he stops and thinks and saves the day. It gets formulaic, but at least there's some variety. Also, how did Cookie survive eating an exploding cookie?
Now, the number of the day. It's 10, and we get a cartoon about 10 dog kisses, What does this have to do with bedtime?
And now the last thing I'll talk about, Elmo's World. Yes, this episode has the return of Elmo's World that nobody asked for. And wow, that cropping is horrible. Seriously, at some points, Elmo's eyes go off-screen. They even had to re-shoot the montage at the beginning because I guess they didn't want to crop that. I can see why they wanted to do this, I really can. They wanted to save money by reusing old material. But they had to crop it because those black bars on the sides are annoying to viewers. Simple solution: DON'T MAKE THEM BLACK! They actually did that with the Season 38 intro after they switched to HD the next season by putting cardboard borders on the sides. They even did it with the Mr. Noodle segment by using Elmo's walls as the bars. Why couldn't they do it with the rest of the segment, I guess we'll never know. And I completely forgot what I was talking about.
Overall, this episode was OK. There were some things I liked (Letter segment, Smart Cookies), some things I didn't (Elmo's World), and some things in the middle (Street Story). Overall, a 6/10.