Are there fleas in Yubeng?

I forgot to mention it before, if you are afraid of the cold, bring a sleeping bag. Because if it rains, it will be quite cold even in June and July, and most inns only have one quilt, which is definitely not enough. There is no need to prevent fleas, because even if you use a sleeping bag, you can't prevent them. If you think about it, fleas can crawl, but they are not immobile. Even if you use a sleeping bag, you can't prevent them. Besides, there are no fleas in Yubeng now.