While she is sleeping, we decided to wake her up.

Trying to understand this grammar. Should we use decide or decided to?

While she is sleeping, we decided to wake her up.

Trying to understand this grammar. Should we use decide or decided to?

Edit:

Okay, the reason I'm asking is because I'm trying to make some captions for a video. So the video will be

"While she was sleeping, we decided to...."

and afterwards we have another caption follows..

"Now she is awake..."

Using 'Now' usually uses present tense afterwards. If we use past tense earlier, it does not logically flows well with present tense later. So I don't know if I should use present or past tense.

While she is sleeping, we decided to wake her up.

Trying to understand this grammar. Should we use decide or decided to?

While she is sleeping, we decided to wake her up.

Trying to understand this grammar. Should we use decide or decided to?

While she is sleeping, we decided to wake her up.

Trying to understand this grammar. Should we use decide or decided to?

Thanks in advance.

While she is sleeping, we decided to wake her up.

Trying to understand this grammar. Should we use decide or decided to?