Debian Sid - Stay some weeks behind current roll

I'm currently on Debian Sid. Is there a way to only update packages that were released, e.g. at least one week ago? Could I schedule an update and then only upgrade two/four weeks later? The intent is to make the system a little more stable by rolling in after the most current release set. I haven't had any problems so far, but only by accident / laziness didn't upgrade to the recent systemd issue that affected some of the rolling distros (systemd 240?).