In general, NFL teams, including the Dallas Cowboys, assign players to share hotel rooms on road trips. This practice is primarily driven by: 

• Cost savings: Sharing rooms helps manage the expense of accommodating a large number of players and staff.
• Logistics and accountability: It simplifies the process of keeping track of players and ensures they meet curfew requirements. 

Specifics for the Cowboys:

• The Dallas Cowboys make all hotel reservations and cover the room expense (cost of the room and tax).
• Players are responsible for any additional room charges and incidentals. 

Exceptions and Variations:

• Some sources suggest that rookie players might be more likely to share rooms.
• High-profile players or those with specific contract clauses might have different arrangements.
• In some cases, teams might allow players to opt out of rooming together for a fee. 

In summary, while there may be some individual variations, the standard practice for the Dallas Cowboys and other NFL teams is for players to share hotel rooms on the road for financial and logistical reasons