M: Or watch it live? <br>A: Go and feel it on the spot to see how you feel when you sleep, and see if the quality is not strong, if there is a sound, if there is any peculiar smell, and its hardness is like this.
M: Or on-site?<br>A: The scene to feel to see how you sleep up your feelings, to see the quality is not secure, there will be no sound ah, there is no odor, its soft hardness so.
M: Or on the spot?<br>A: Feel it on the spot, see how you feel when you sleep, see whether the quality is firm, whether there will be sound, whether there is peculiar smell, and its softness and hardness.