Air carrier first officer reported a speed deviation below 10;000 feet during descent.

Attributes
ACN	1766874
Time
Date	202010
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.TRACON
State Reference	US
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Descent Initial Approach
Flight Plan	IFR
Person 1
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 60
Events
Anomaly	Deviation - Procedural FAR Deviation - Procedural Published Material / Policy Deviation - Speed All Types

Narrative:

Day 1; leg 1 of a 4 day trip from ZZZ to ZZZ1. I was the pilot monitoring on this leg. Had not flown much in the last few weeks. Captain was PF. We flew to ZZZ1 at a pretty low altitude; I believe it was 14;000 feet cruise altitude. After starting the descent; we did not realize we had passed 10;000 feet so quickly; and noticed our speed was beyond 250 knots. The captain immediately slowed the descent rate and airspeed; in order to return to 250 knots.we were distracted. We were on the first leg of the trip; had woken up pretty early; and the fact that we cruised at such a low altitude were possibly all factors. We did not pay enough attention in the descent.I should have kept better monitoring skills during the descent and avoided distractions.

Original NASA ASRS Text

Title: Air Carrier First Officer reported a speed deviation below 10;000 feet during descent.

Narrative: Day 1; leg 1 of a 4 day trip from ZZZ to ZZZ1. I was the pilot monitoring on this leg. Had not flown much in the last few weeks. Captain was PF. We flew to ZZZ1 at a pretty low altitude; I believe it was 14;000 feet cruise altitude. After starting the descent; we did not realize we had passed 10;000 feet so quickly; and noticed our speed was beyond 250 knots. The Captain immediately slowed the descent rate and airspeed; in order to return to 250 knots.We were distracted. We were on the first leg of the trip; had woken up pretty early; and the fact that we cruised at such a low altitude were possibly all factors. We did not pay enough attention in the descent.I should have kept better monitoring skills during the descent and avoided distractions.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.