Quick note, this is the favored incantation to prevent too many instances of lost connections.
mkdir /local/mount/point sshfs -o allow_root,reconnect,ServerAliveInterval=15,ServerAliveCountMax=3 user@remotelocation:/path/to/folder /local/mount/point
The extra arguments are the real magic here. If you notice, some of those help reestablish the connection - in practice, this means that sometimes it will come back after putting your laptop to sleep. I tend to put specific commands for specific mounts into scripts. However, you can also just put the first part with the ‘incantations’ into a bash alias.
Add this to the end:
alias shfs='sshfs -o allow_root,reconnect,ServerAliveInterval=15,ServerAliveCountMax=3 '
Then you can simplify mounting, and make it very similar to scp and ssh:
mkdir /local/mount/point shfs user@remotelocation:/path/to/folder /local/mount/point