One thing that is frustrating about hotels.com is that when you scroll down to the bottom of hotels listed as "pet friendly", more often than not, ticked off, is the feature: no pets allowed ! We've had this problem a few times when we've transited through Ho Chi Minh City. One little hotel that does honour it's "pet friendly" listing is the Hoang Mai 2. Not much of a hotel and on a busy street, but its very good value for the price, fairly near the airport, and a ten minute suicide walk through the streets to one of the few dog parks in Saigon. The staff are really helpful, friendly and volunteered to go with us to help walk our dogs in the park. We'll stay here again.