Both need plenty of water. The soil should be moist, and should never be allowed to dry out completely. The pineapple sage can do with full sun, the mint can use partial shade if the sun where you are is very strong.

I think you're probably overwatering. The soil shouldn't be wet or soggy, just moist. A well-drained position is one which will allow excess water to drain away quickly - like on the top of a mound or hill, or in a pot with plenty of drainage holes and which is standing off the ground. A well-drained soil does the same by having lots of organic (plant) material (compost) in it.

Do they perk up in the evenings? On a hot day, many plants will droop in the heat. Just like people.

Are you in California? If so, the pineapple sage will probably want only shade during the hottest part of the day. If you are in Florida,they'll need full sun, and it's raining, then you probably don't need to water much. You get it naturally. If you are in Califorania, the clay probably isn't draining properly and they are sitting in sludgy water.